Monthly outlook for Seaside, CT: average high 60.8°, average low 49.6°. That is 0.1° above the climate normal for October. Precipitation is expected on 1 day (about 1.2 inches), against a normal of 4 days and 2.2 inches. The warmest day looks like 14 October (73.7°), the coolest 18 October (34.9°).
60.8°/49.6°
Average high / low
+0.1°
Above normal
1 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
62.5°
61.5°
+0.6°
23 October – 1 November
58°
58.2°
-0.2°
2 November – 11 November
at normal
55.3°
—
October records over 66 years
82°8 October 2007All-time high
28.9°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Fishers Island (8 mi).
Wed, 1474° / 60°0
74 °
Seaside, Wednesday, 14 October
Overcast. High 74°, low 60°.
Pressure29.83 inHg
Wind8.5 mph W
Humidity66%
Visibility6.2 mi
Dew point63°
Thu, 1563° / 52°0
63 °
Seaside, Thursday, 15 October
Clear. High 63°, low 52°.
Pressure30.21 inHg
Wind6 mph N
Humidity52%
Visibility6.2 mi
Dew point43°
Fri, 1671° / 54°1.15
71 °
Seaside, Friday, 16 October
Heavy rain. High 71°, low 54°.
Pressure29.65 inHg
Wind12.7 mph SW
Humidity97%
Visibility3.9 mi
Dew point66°
Sat, 1754° / 40°0.02
54 °
Seaside, Saturday, 17 October
Light rain. High 54°, low 40°.
Pressure29.94 inHg
Wind17.5 mph NW
Humidity49%
Visibility6.2 mi
Dew point27°
Sun, 1854° / 35°0
54 °
Seaside, Sunday, 18 October
Clear. High 54°, low 35°.
Pressure30.47 inHg
Wind10.1 mph SW
Humidity50%
Visibility—
Dew point29°
Mon, 1962° / 51°0
62 °
Seaside, Monday, 19 October
Overcast. High 62°, low 51°.
Pressure30.42 inHg
Wind20.4 mph SW
Humidity67%
Visibility—
Dew point47°
Tue, 2064° / 57°0
64 °
Seaside, Tuesday, 20 October
Overcast. High 64°, low 57°.
Pressure30.36 inHg
Wind16 mph SW
Humidity63%
Visibility—
Dew point49°
Wed, 2163° / 50°0
63 °
Seaside, Wednesday, 21 October
Clear. High 63°, low 50°.
Pressure30.42 inHg
Wind11.1 mph NE
Humidity40%
Visibility—
Dew point33°
Thu, 2257° / 48°0
57 °
Seaside, Thursday, 22 October
Partly cloudy. High 57°, low 48°.
Pressure30.50 inHg
Wind9.1 mph S
Humidity66%
Visibility—
Dew point44°
Fri, 2362° / 55°0
62 °
Seaside, Friday, 23 October
Overcast. High 62°, low 55°.
Pressure30.36 inHg
Wind16.2 mph SW
Humidity72%
Visibility—
Dew point51°
Sat, 2466° / 59°0
66 °
Seaside, Saturday, 24 October
Clear. High 66°, low 59°.
Pressure30.09 inHg
Wind16.2 mph SW
Humidity75%
Visibility—
Dew point55°
Sun, 2560° / 52°0
60 °
Seaside, Sunday, 25 October
Clear. High 60°, low 52°.
Pressure30.00 inHg
Wind13.8 mph N
Humidity50%
Visibility—
Dew point40°
Mon, 2657° / 46°0
57 °
Seaside, Monday, 26 October
Clear. High 57°, low 46°.
Pressure29.91 inHg
Wind13 mph W
Humidity53%
Visibility—
Dew point35°
Tue, 2751° / 43°0
51 °
Seaside, Tuesday, 27 October
Clear. High 51°, low 43°.
Pressure30.09 inHg
Wind18.7 mph NW
Humidity49%
Visibility—
Dew point30°
Wed, 2851° / 38°0
51 °
Seaside, Wednesday, 28 October
Overcast. High 51°, low 38°.
Pressure30.42 inHg
Wind9.5 mph NW
Humidity46%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2957° / 45°0.17
57 °
Seaside, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.17 in
Chance of precipitation23%
Record high73° (1971)
Record low32° (1965)
Fri, 3056° / 44°0.17
56 °
Seaside, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.17 in
Chance of precipitation25%
Record high69° (1971)
Record low33° (2020)
Sat, 3157° / 45°0.08
57 °
Seaside, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.08 in
Chance of precipitation23%
Record high72° (2024)
Record low29° (2020)
Sun, 0158° / 46°0.11
58 °
Seaside, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.11 in
Chance of precipitation32%
Record high74° (2024)
Record low36° (1968)
Mon, 0258° / 46°0.09
58 °
Seaside, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.09 in
Chance of precipitation30%
Record high68° (2022)
Record low30° (1965)
Tue, 0358° / 45°0.17
58 °
Seaside, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.17 in
Chance of precipitation30%
Record high70° (1990)
Record low32° (2002)
Wed, 0456° / 45°0.04
56 °
Seaside, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (1975)
Record low33° (2013)
Thu, 0556° / 45°0.15
56 °
Seaside, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.15 in
Chance of precipitation38%
Record high69° (2022)
Record low33° (1965)
Fri, 0655° / 44°0.13
55 °
Seaside, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.13 in
Chance of precipitation35%
Record high71° (2024)
Record low32° (2012)
Sat, 0755° / 43°0.08
55 °
Seaside, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.08 in
Chance of precipitation25%
Record high73° (2022)
Record low30° (1962)
Sun, 0854° / 42°0.12
54 °
Seaside, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.12 in
Chance of precipitation30%
Record high71° (2020)
Record low30° (2019)
Mon, 0954° / 42°0.09
54 °
Seaside, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.09 in
Chance of precipitation20%
Record high71° (1975)
Record low26° (2019)
Tue, 1055° / 42°0.18
55 °
Seaside, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.18 in
Chance of precipitation38%
Record high67° (1999)
Record low27° (2017)
Wed, 1153° / 42°0.15
53 °
Seaside, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.15 in
Chance of precipitation35%
Record high67° (2022)
Record low24° (2017)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Seaside, CT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Seaside, CT since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.